Determination of Nb(C, N) dissolution temperature by electrical resistivity measurement in a low-carbon microalloyed steel

The dissolution temperature of Nb(C, N) precipitates in a low-carbon microalloyed steel was quantitatively examined using electrical resistivity. The dissolution temperature of 0.02C–0.08Nb steel was about 1200 °C with isochronal annealing for 10 min and this was confirmed by transmission electron microscopic observation.